[blam]

"It would create a shockwave/pressure wave that would travel all the way across the planet that would concentrate on the other side. I am crazy or can yall visualize this too?"

It's the first time I have ever heard this or even considered it. I like the simpler idea of the 'punch through.'

[null and void]

Yes. Imagine you are standing at the exact opposite side of the globe from a major impact.

The shock wave radiates out in all directions from the blast at the speed of sound in rock.

You get a sharp bump straight up when the shockwave traveling the shorter path straight through the core reaches you first.

About the time that settled down the surface wave reaches you. From all sides. At once. Concentrated. Focused. Nearly as intense as the impact itself.

The pressure wave jets you and acres of liqufied bedrock towards the heavens...